A sapphire and diamond ring, centering an octagonal step-cut sapphire weighing approximately 5.30ct, diamond weight approximately 0.35ct, mounted in 18ct gold and platinum, ring size L 1/2. Accompanied by Grs report #GRS2018-098595, dated 14th September 2018, stating the sapphire as: natural, Sri Lankan origin, no indications of thermal treatment.